LCOV - code coverage report
Current view: top level - src/util - bip32.cpp (source / functions) Hit Total Coverage
Test: fuzz_coverage.info Lines: 1 38 2.6 %
Date: 2023-09-26 12:08:55 Functions: 1 4 25.0 %

          Line data    Source code
       1             : // Copyright (c) 2019-2022 The Bitcoin Core developers
       2             : // Distributed under the MIT software license, see the accompanying
       3             : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
       4             : 
       5             : #include <tinyformat.h>
       6             : #include <util/bip32.h>
       7             : #include <util/strencodings.h>
       8             : 
       9             : #include <cstdint>
      10             : #include <cstdio>
      11             : #include <sstream>
      12             : 
      13           0 : bool ParseHDKeypath(const std::string& keypath_str, std::vector<uint32_t>& keypath)
      14             : {
      15           0 :     std::stringstream ss(keypath_str);
      16           0 :     std::string item;
      17           0 :     bool first = true;
      18           0 :     while (std::getline(ss, item, '/')) {
      19           0 :         if (item.compare("m") == 0) {
      20           0 :             if (first) {
      21           0 :                 first = false;
      22           0 :                 continue;
      23             :             }
      24           0 :             return false;
      25             :         }
      26             :         // Finds whether it is hardened
      27           0 :         uint32_t path = 0;
      28           0 :         size_t pos = item.find('\'');
      29           0 :         if (pos != std::string::npos) {
      30             :             // The hardened tick can only be in the last index of the string
      31           0 :             if (pos != item.size() - 1) {
      32           0 :                 return false;
      33             :             }
      34           0 :             path |= 0x80000000;
      35           0 :             item = item.substr(0, item.size() - 1); // Drop the last character which is the hardened tick
      36           0 :         }
      37             : 
      38             :         // Ensure this is only numbers
      39           0 :         if (item.find_first_not_of( "0123456789" ) != std::string::npos) {
      40           0 :             return false;
      41             :         }
      42             :         uint32_t number;
      43           0 :         if (!ParseUInt32(item, &number)) {
      44           0 :             return false;
      45             :         }
      46           0 :         path |= number;
      47             : 
      48           0 :         keypath.push_back(path);
      49           0 :         first = false;
      50             :     }
      51           0 :     return true;
      52           0 : }
      53             : 
      54           0 : std::string FormatHDKeypath(const std::vector<uint32_t>& path, bool apostrophe)
      55             : {
      56           0 :     std::string ret;
      57           0 :     for (auto i : path) {
      58           0 :         ret += strprintf("/%i", (i << 1) >> 1);
      59           0 :         if (i >> 31) ret += apostrophe ? '\'' : 'h';
      60             :     }
      61           0 :     return ret;
      62           0 : }
      63             : 
      64           0 : std::string WriteHDKeypath(const std::vector<uint32_t>& keypath, bool apostrophe)
      65             : {
      66           0 :     return "m" + FormatHDKeypath(keypath, apostrophe);
      67           0 : }

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